14-100146792-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The ENST00000305631.7(DEGS2):​c.941G>A​(p.Arg314Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000155 in 1,613,668 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

DEGS2
ENST00000305631.7 missense

Scores

6
11
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.06
Variant links:
Genes affected
DEGS2 (HGNC:20113): (delta 4-desaturase, sphingolipid 2) This gene encodes a bifunctional enzyme that is involved in the biosynthesis of phytosphingolipids in human skin and in other phytosphingolipid-containing tissues. This enzyme can act as a sphingolipid delta(4)-desaturase, and also as a sphingolipid C4-hydroxylase. [provided by RefSeq, Oct 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DEGS2NM_206918.3 linkuse as main transcriptc.941G>A p.Arg314Gln missense_variant 3/3 ENST00000305631.7 NP_996801.2
DEGS2XM_006720043.4 linkuse as main transcriptc.833G>A p.Arg278Gln missense_variant 4/4 XP_006720106.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DEGS2ENST00000305631.7 linkuse as main transcriptc.941G>A p.Arg314Gln missense_variant 3/31 NM_206918.3 ENSP00000307126 P1
DEGS2ENST00000553834.1 linkuse as main transcriptc.*33G>A 3_prime_UTR_variant 2/23 ENSP00000450637

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152126
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251094
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135706
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000164
AC:
24
AN:
1461542
Hom.:
0
Cov.:
32
AF XY:
0.0000124
AC XY:
9
AN XY:
727076
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000376
Gnomad4 NFE exome
AF:
0.0000162
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152126
Hom.:
0
Cov.:
34
AF XY:
0.0000135
AC XY:
1
AN XY:
74302
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000620
Hom.:
0
Bravo
AF:
0.0000113
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000412
AC:
5

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMar 25, 2024The c.941G>A (p.R314Q) alteration is located in exon 3 (coding exon 3) of the DEGS2 gene. This alteration results from a G to A substitution at nucleotide position 941, causing the arginine (R) at amino acid position 314 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.72
BayesDel_addAF
Uncertain
0.15
D
BayesDel_noAF
Uncertain
0.080
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.66
D
Eigen
Pathogenic
0.78
Eigen_PC
Pathogenic
0.70
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.94
D
M_CAP
Benign
0.062
D
MetaRNN
Uncertain
0.72
D
MetaSVM
Uncertain
-0.057
T
MutationAssessor
Pathogenic
3.8
H
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.60
T
PROVEAN
Uncertain
-3.5
D
REVEL
Uncertain
0.49
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0020
D
Polyphen
1.0
D
Vest4
0.56
MVP
0.79
MPC
1.7
ClinPred
1.0
D
GERP RS
4.7
Varity_R
0.69
gMVP
0.89

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs370742115; hg19: chr14-100613129; API